ASME B18.2.2 TABLE 2 De forme standard Dimensions pour Square nuts, square machined nuts and heavy square nuts, inch series
Écrous carrés
Dessins cotés et schémas techniques
Dimensions et paramètres techniques clés
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Dimensions in inches (1 inch=25.4 mm) sourceASME B18.2.2 2010 table 2 Square Nuts Publication date: 2010 |
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d Thread size
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UNC (nr of threads x inch) |
UNF (nr of threads x inch) |
F basic | G min | G max | H min | H max | |
| inch | mm | |||||||
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1/4
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6.35 | 20 | 28 | 0.438 | 0.554 | 0.619 | 0.203 | 0.235 |
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5/16
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7.94 | 18 | 24 | 0.562 | 0.721 | 0.795 | 0.249 | 0.283 |
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3/8
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9.53 | 16 | 24 | 0.625 | 0.802 | 0.884 | 0.310 | 0.346 |
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7/16
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11.11 | 14 | 20 | 0.75 | 0.97 | 1.061 | 0.356 | 0.394 |
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1/2
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12.70 | 13 | 20 | 0.812 | 1.052 | 1.149 | 0.418 | 0.458 |
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5/8
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15.88 | 11 | 18 | 1 | 1.3 | 1.414 | 0.525 | 0.569 |
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3/4
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19.05 | 10 | 16 | 1.125 | 1.464 | 1.591 | 0.632 | 0.680 |
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7/8
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22.23 | 9 | 14 | 1.312 | 1.712 | 1.856 | 0.740 | 0.792 |
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1
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25.40 | 8 | 12 | 1.5 | 1.961 | 2.121 | 0.847 | 0.903 |
| 1-1/8 | 28.58 | 7 | 12 | 1.688 | 2.209 | 2.386 | 0.970 | 1.030 |
| 1-1/4 | 31.75 | 7 | 12 | 1.875 | 2.458 | 2.652 | 1.062 | 1.126 |
| 1-3/8 | 34.93 | 6 | 12 | 2.062 | 2.708 | 2.917 | 1.169 | 1.237 |
| 1-1/2 | 38.10 | 6 | 12 | 2.25 | 2.956 | 3.182 | 1.276 | 1.348 |